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Net Loss Per Share (Details)	6 Months Ended
Net Loss Per Share (Details)	Jan. 31, 2015	Jan. 31, 2014
Net Loss Per Share [Abstract]
Antidilutive shares	10,348,667	7,602,488

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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